package com.frx.datastruct.chapterseven;

/**
 * Created by xurenfeng on 2019/3/5.
 */
public interface Map<K,V> {


    int getSize();

    boolean isEmpty();

    void add(K key,V val);

    V remove(K key);

    boolean contains(K key);

    V get(K key);

    void set(K key,V val);


}
